This scanning electron micrograph presents a dorsal view of an American dog tick Dermacentor variabilis magnified 21X 2002 Ticks are of the class...
{"Image ImageDescription": "This scanning electron micrograph (SEM) presents a dorsal view of an American dog tick, Dermacentor variabilis, magnified 21X, 2002. Ticks are of the class Arachnida, as are spiders and mites. D. variabilis is a known carrier of Rocky Mountain Spotted Fever caused by the bacterium Rickettsia rickettsii. Image courtesy CDC. (Photo by Smith Collection/Gado/Getty Images)."}